Monitoring unbound(8) using Net-SNMP, Telegraf, InfluxDB and Elasticsearch

       809 words, 4 minutes

I’ve enabled an OpenBSD unbound(8) daemon that is used as a central DNS cache resolver. Now I needed to know what it was doing and how it performed. The question was answered grabbing statistics from unbound and render them using Grafana. The whole monitoring stack is composed of Net-SNMP, Telegraf and InfluxDB for the metrics part ; and syslogd(8), Logstash and Elasticsearch for the logs part. Of course, most of those run on OpenBSD (6.3) ; except Telegraf, which is not available (yet).

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Monitoring pf(4) using snmpd(8), Telegraf and Grafana

       514 words, 3 minutes

I regularly check my pf(4) activity using pfctl(8) and pflogd(8). I already monitored pf using collectd(1) and rrdtool. This time, I wanted to use my already configured InfluxDB/Grafana system. The thing is, Telegraf is not (yet) available in OpenBSD 6.3. So I used a Telegraf container to remotely poll OpenBSD using the native SNMP OPENBSD-PF-MIB.

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Backup and Restore InfluxDB databases

       276 words, 2 minutes

Once upon a time, the collectd database was hosted on the dagobah InfluxDB 1.4.x server. Then came the moment when it had to be migrated to the hoth server. The backup and restore process happened this way…

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Monitoring OpenBSD using CollectD, InfluxDB and Grafana

       357 words, 2 minutes

In a “get pretty graphs” mood, I’m looking at what can be done regarding OpenBSD monitoring using the CollectD collector and Grafana dashboard renderer. OpenBSD 6.2-current provides InfluxDB and Grafana packages. A great stack for pretty reportings.

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